Comparison of the friction and wear properties of titanium and oxidised titanium in dry sliding against sintered high speed steel HS18-0-1 and against C45 carbon steel

2005 ◽  
Vol 164-165 ◽  
pp. 868-875 ◽  
Author(s):  
S. Król ◽  
Z. Zalisz ◽  
M. Hepner
Keyword(s):  
Carbon Steel ◽  
High Speed ◽  
Friction And Wear ◽  
High Speed Steel ◽  
Dry Sliding ◽  
Wear Properties ◽  
Friction And Wear Properties

Tribological Behavior of Co-WC Composite Coatings

2020 ◽  
Vol 996 ◽  
pp. 173-178
Author(s):  
Ya Gang Zhang ◽  
Wan Chang Sun ◽  
Min Ma ◽  
Sha Sha Tian ◽  
Yu Wan Liu ◽  
...  
Keyword(s):  
Composite Coating ◽  
Energy Efficient ◽  
High Speed ◽  
Friction And Wear ◽  
Tribological Behavior ◽  
Composite Coatings ◽  
High Speed Steel ◽  
Wear Loss ◽  
Wear Properties ◽  
Friction And Wear Properties

A novel Co-WC composite coating was deposited on the surface of high speed steel (HSS) substrate by an energy-efficient method of electrodeposition. The effects of process parameters on friction and wear properties of the composite coatings were evaluated, and the worn morphologies of Co-WC composite coatings were investigated by scanning electron microscopy. Results revealed that the incorporation of WC particles can significantly improve the wear resistance of the coating. As the current density was increased to 6.5Adm-2 and the WC concentration was increased to 35g/L, the Co-WC composite coating had the lowest friction coefficient and wear loss.

scholarly journals Effects of Reduced Graphene Oxide (rGO) at Different Concentrations on Tribological Properties of Liquid Base Lubricants

Lubricants ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 11 ◽  
Author(s):  
Jankhan Patel ◽  
Amirkianoosh Kiani
Keyword(s):  
Graphene Oxide ◽  
Physical Properties ◽  
Reduced Graphene Oxide ◽  
Tribological Properties ◽  
High Speed ◽  
Friction And Wear ◽  
Control Sample ◽  
Wear Properties ◽  
Reduced Graphene ◽  
Friction And Wear Properties

In this study, reduced graphene oxide (rGO) nano platelets were used as an additive to enhance friction and wear properties of oil-based lubricants by preparing three samples at 0.01% w/w, 0.05% w/w, and 0.1% w/w concentrations. To analyze the direct effect of rGO nano platelets on tribological properties, 99.9% pure oil was used as a liquid lubricant. A comparative tribological study was done by performing a ball-on-disk wear test in situ under harsh conditions, which was further analyzed using a non-contact 3D optical profilometer. Morphological evaluation of the scar was done using transmission and scanning electron microscopy (TEM, SEM) at micro and nano levels. The lubricants’ physical properties, such as viscosity and oxidation number, were evaluated and compared for all samples including pure oil (control sample) as per ASTM standards. Findings of all these tests show that adding rGO nano platelets at 0.05% w/w showed significant reduction in friction at high speed and in wear up to 51.85%, which is very promising for increasing the life span of moving surfaces in machinery. Oxidation and viscosity tests also proved that adding rGO nano platelets to all samples does not sacrifice the physical properties of the lubricant, while it improves friction and wear properties.

The Analysis on the Tribological Properties of CR/EPDM Blends with Chrome-Plated Steel under Dry Sliding

2013 ◽  
Vol 774-776 ◽  
pp. 99-102 ◽  
Author(s):  
Lian Hua Zhao ◽  
Xiao Bo Wei ◽  
Xiao Guang Li
Keyword(s):  
Friction And Wear ◽  
Conveyor Belt ◽  
Operating Conditions ◽  
Dry Sliding ◽  
Wear Properties ◽  
Transportation Equipment ◽  
Pros And Cons ◽  
Friction And Wear Properties ◽  
Technology Comparison ◽  
Better Than

It is based on actual working conditions and parameters of the conveyor belt, to reach the purpose of the optimizing rubber by different rubbers mixing technology. Comparison the five kinds rubber and metal of the friction characteristics in dynamic fit, obtained a performance excellent rubber in the specific operating conditions. Then improve the overall service life of the transportation equipment. It is first prepared the same hardness CR and EPDM and blends that is ratio of 2:8, 5:5and8:2 in this article. The pros and cons of the five rubbers are analyzed by friction and wear properties of the above experimental. The test curve of coefficient friction and wear with time has been done under different load at constant low speed, friction and wear and wear mechanism of five rubbers with chrome-plated steel comparatively analyses to determine CR/EPDM = 8:2 blends has the heat resistance and wear resistance are better than CR and EPDM under dry sliding conditions.

scholarly journals Study on Friction and Wear Properties of Pantograph Strip/Copper Contact Wire for High-Speed Train

2014 ◽  
Vol 8 (1) ◽  
pp. 125-128 ◽  
Author(s):  
Tao Ding ◽  
Wenjing Xuan ◽  
Qiudong He ◽  
Hao Wu ◽  
Wei Xiong
Keyword(s):  
Wear Rate ◽  
Electric Current ◽  
High Speed ◽  
Friction And Wear ◽  
Optical Microscope ◽  
Wear Properties ◽  
Contact Wire ◽  
Arc Erosion ◽  
The Coefficient Of Friction ◽  
Friction And Wear Properties

A series of experiments on friction and wear properties of carbon strip rubbing against copper contact wire is performed on high-speed friction and wear tester with electric current. The results show that the friction coefficient is generally maintained between 0.24 and 0.37. In the absence of electric current, the coefficient of friction is higher than that in the presence of electric current. The wear rate of carbon strip materials is generally not more than 0.014g/km. In particular, the wear rate under the electric current of 240 A is 14 times more than that in the absence of electric current. By observing the scar of worn surface with optical microscope, it can be found that there are obvious slip scars and arc erosive pits. The dominated wear mechanisms are abrasive wear and arc erosion in electrical sliding frictional process.

Friction and wear properties and mechanism of bronze–Cr–Ag composites under dry-sliding conditions

2016 ◽  
Vol 96 ◽  
pp. 132-140 ◽  
Author(s):  
Kongjie Jin ◽  
Zhuhui Qiao ◽  
Shengyu Zhu ◽  
Jun Cheng ◽  
Bing Yin ◽  
...  
Keyword(s):  
Friction And Wear ◽  
Dry Sliding ◽  
Wear Properties ◽  
Friction And Wear Properties

The effect of composition segregation on the friction and wear properties of ZA48 alloy in dry sliding condition

2009 ◽  
Vol 44 (15) ◽  
pp. 4169-4173 ◽  
Author(s):  
Shu-qing Yan ◽  
Jing-pei Xie ◽  
Zhong-xia Liu ◽  
Ji-wen Li ◽  
Wen-yan Wang ◽  
...  
Keyword(s):  
Friction And Wear ◽  
Dry Sliding ◽  
Wear Properties ◽  
Composition Segregation ◽  
Friction And Wear Properties

The Friction and Wear Properties of VC Coating by TD Process

2010 ◽  
Vol 33 ◽  
pp. 61-65 ◽  
Author(s):  
Chao Zheng Zhou ◽  
De Jun Kong ◽  
Yu Feng Yan
Keyword(s):  
Crack Growth ◽  
Wear Mechanism ◽  
High Speed ◽  
Friction And Wear ◽  
Cold Working ◽  
Mutual Influence ◽  
Wear Properties ◽  
Fatigue Wear ◽  
Friction And Wear Properties ◽  
Surface Morphologies

VC coating was prepared on the surface of Cr12MoV cold working die steel by TD process, and its friction and wear properties were researched with HSR-2M type high-speed reciprocating friction and wear tester, the effects of load on friction and wear properties were discussed, and the wear surface morphologies were observed with SEM. The experimental results shown that fatigue wear and adhesive wear are mainly wear mechanism of VC coating, and the different parts have an influence on wear mechanism; When cracks occurs, the crack growth is the combined result of mutual influence of elastic-plastic crack growth and fatigue crack growth; There is no relationship between friction coefficient and load, and the wear rate increases with the load.

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